Call the Vercel REST API with curl + jq. The user's token is in
$VERCEL_ACCESS_TOKEN; every call needs Authorization: Bearer $VERCEL_ACCESS_TOKEN. Base URL: https://api.vercel.com. If the resource is
team-scoped, append ?teamId=$VERCEL_TEAM_ID (set only when the user connected a
team token).
Errors come back as {"error":{"code","message"}} — show message verbatim.
403 forbidden usually means the token can't see that team/project →
re-connect with the right scope.
Helper for the optional team param:
TEAM=""; [ -n "$VERCEL_TEAM_ID" ] && TEAM="?teamId=$VERCEL_TEAM_ID"
AUTH="Authorization: Bearer $VERCEL_ACCESS_TOKEN"
Projects & deployments
# Projects
curl -sS -H "$AUTH" "https://api.vercel.com/v9/projects$TEAM" \
| jq '.projects[] | {name, framework, latestProduction: .latestDeployments[0].url}'
# Recent deployments (optionally filter by ?projectId=… or &state=ERROR)
curl -sS -H "$AUTH" "https://api.vercel.com/v6/deployments${TEAM:-?}&limit=20" \
| jq '.deployments[] | {uid, name, url, state, readyState, created}'
Diagnose a failed build
# Deployment detail
curl -sS -H "$AUTH" "https://api.vercel.com/v13/deployments/DEPLOYMENT_ID${TEAM:+&teamId=$VERCEL_TEAM_ID}" \
| jq '{name, url, state: .readyState, error: .errorMessage}'
# Build / runtime events (the actual logs)
curl -sS -H "$AUTH" "https://api.vercel.com/v3/deployments/DEPLOYMENT_ID/events${TEAM:+?teamId=$VERCEL_TEAM_ID}" \
| jq -r '.[] | select(.type=="stdout" or .type=="stderr") | .payload.text'
Domains & redeploy
# Project domains
curl -sS -H "$AUTH" "https://api.vercel.com/v9/projects/PROJECT_ID/domains${TEAM:+?teamId=$VERCEL_TEAM_ID}" \
| jq '.domains[] | {name, verified}'
To redeploy, POST to https://api.vercel.com/v13/deployments with a
deploymentId (or git source) body — confirm with the user first, it ships
to production.
Gotchas
- Never print env-var values. Listing project env vars returns metadata;
the
/v1/.../env/{id}decrypt route returns secrets — don't call it unless the user explicitly asks, and even then summarize, don't echo. - Deployment
state/readyState:QUEUED → BUILDING → READY | ERROR | CANCELED. created/readyare epoch ms — divide by 1000 for human time.